Joint



Feb-25, 1930.

H. C. LORD JEOINT Filed May 31, 192'? Patented Feb. 25, 1930 UNITED STATES noon 0. Loan, or ERIE, rnnnsvnvnmn JOINT Application filed May 31,

, The invention is particularly advantageous for universal joints and is so shown. Universal joints in many situations, such as automobiles, are driven at very high speeds and weight is, therefore, quite a factor with relation to such joints. By utilizing rubber as the joint member a ,desirable form of connection is provided from sheet metal. This not'only makes a very light structure but one that may be manufactured within close limits at a very low price. The invention also involves an improvement in the mounting of the pins on which the rubber is placed. Features and details of the invention will ap- 16 pear more fully from the specification and claims.

A preferred embodiment of the invention is illustrated in the accompanying drawings as follows Fig. 1 shows a side elevation of the joint as a universal.

Fig. 2 a perspective view of a stampin forming one of the connecting members 0 the joint.

Fig. 3 a section on the line 3-3 in Fig. 1.

Fig. 4 a lan view of a blank from which the clam orming the cross of the universal is forme I Fig. 5 a perspective view of one of the joint members.

1 marks the shafts leading to the universal.

These shafts have the squared ends 2.

' The rubber joints are provided with a central pin 3, a rubber bushing 4 and an outer shell 5, the rubber being preferabliy united with the pin and shell by surface bon g The forks for the universals are formed by stamping as shown in Fig. 2 and the ends of the forks are rovided with eyes 6, these eyes being forme in a loop 6 of the stamping, the stamping-being bent around upon itself at this loop formin the eye. formed at the attac ing ends of the forks, a half sleeve being formed at each end of the stamping, the halves bein brought together as the eyes 6 are forme An opening 8 whichforms the forks is preferably formed in the flat blank somewhat larger than the 9 ultimate opening and the loops 6" and the Sleeves 7 are 1927. Serial No. 195,299.

sleeve portions 7 are ,stamped separatel thus preventing the side-drawing and wealzening of the metal.

Plates 9 between the eyes 6 and sleeves 7 are perforated at 10 and bolts 11 extend through these perforations, the bolts 11 next the eyes closing the eyes so as to clamp them upon the shells 5 and the bolts further clamping the sleeve 7 on the squared end of the shaft 1 if desired, as shown at the left of Fig. 1. If desired the sleeve may be lengthened as shown at the right of Fig. 1 and additional bolts 11 provided for this elongation. Here a shim 7 a may be used and the sleeve operating in connection with the squared end form a slipjoint.

The pins 3 extend between clamping plates 12, these clamping plates having recesses 12 to receive the pinsl The clamping plate in blankform has the opening 13 and the recesses 12 are stam ed separately, thus drawing the metal togetlier and reducing the opening 13 to the opening 13 as shown in Fig. 3.

Thus the corners at the recesses may be made much sharper and the drawingof the metal obviated. The plates have perforations 14 and clamping bolts 15 extend through the corners of the plates drawing the plates together into clamping relation on the pins 3. In order to lock the rubber joints in neutral position with the joint in alinement the pins are provided with semi-cylindrical ends 16. The plane surfaces of one pair of joints overlap and extend over the plane surfaces of the other pair of joints at the center and the joints are bevelled at 17 so that the joints of the same pair overlap. Thus the pins are braced one with the other at the center and this materially assists the clamping action in holdin them against the strains sustained by the joint.

' What I claim as new is 1. In a universal joint, the combination of two rubber joint members, each member having a central pin extending inwardly and engaging and overlapping the pin of the opposite member and a central block engaging the inwardly extending portions of the central pin.

2. Ina universal joint, the combination of four rubber joint members arranged in pairs, one pair being at right angles to the other, each member having a central pin engaging the other member of the pair and overlapping the ends of the pins of the companion pair and a central block engaging the overlapping portions of the pins.

3. In a universal joint, the combination of four rubber joint members arranged iii pairs,

one pair being at right angles to the other, each member having a central pin, the pins of-each pair engaging and overlapping each other and engaging and overlapping the ends of the pins of the companion pair and a central block engaging the overlapping portions of the pins.

4. In a universal joint, the combination of I four rubber joint members, each pair having a central pin cut away at its inner end, the cut-away portion having a semi-cylindrical shape, the two ends of each pairoverlapping the ends of the companion pair and a central block engaging the overlapping portions of the pins.

5. In a universal joint, thecombination of four'rubber joint members, each pair having a central pin cut away at its inner end, the

cut-away portion having a semi-cylindrical shape, each semi-cylindrical end being beveled and overlapping the end of the pin of TI the other joint of the pair-and a central block engaging the overlapping portions of the pins. In

HUGH cement testimony whereof I have hereunto set my hand. 

